This webiste is now based on Drupal 5. There isn’t any change you can see. But, I can tell you that, functionality-wise and usability-wise, this version is terrific.
For admins: it’s very easy to configurate various settings from the web interface. Assigining roles and giving permissions, admins can work moderators easily.
For users: every instruction is way more clear and they are presented in a visually effective way.